API to call Ingame Functions (LUA Injector)

Hello, after I've awarded a Freelancer here, which doesn't response for 1 Week now and he is over the time I need a new Freelancer who is able to realize this project in a short time frame. Its about a (non pixelsearching) Bot for a popular videogame. I only need an API which allows me to call different ingame functions (like moveTo(x,y), capture Checkpoints, ingameTime and some more which I will describe in detail). Exact gamename and the ingame functions which I need, will I tell you in private. Its up to you whether you realize it packetbased or by using memory writing/calling. I would like to hear in which way you are going to realize it and which experience you have with such projects/skills. Take care that the game gets updatet every month so it needs to be well coded for further updates/changes. The Timeframe is a maximum of 2 weeks, faster would be awesome.